Operational Method for the Assessment of Existing Structures - Quiz

Quiz Question

1.	Based on proof loading, one may draw conclusions with respect to:
		The bearing capacity of the tested member under the test load condition
		Other members and load conditions
		The behavior of the system
		All of the above
2.	The level of reliability required ensuring acceptable safety and Serviceability is:
		Target reliability level
		Structural safety
		Serviceability
		Reliability differentiation
3.	Total period of time during which the execution and use of a construction works takes place is:
		Durability
		Life Cycle
		Remaining Working Life
		Design Situation
4.	A set of concentrated or distributed forces acting on a structure is:
		Direct action
		Indirect action
5.	Action that causes significant acceleration to a structure or a structural element is:
		Static
		Dynamic
6.	In the picture above, a test setup is shown
		Ultrasonic Pulse Velocity
		Violet
		Rebound
		None of the above
7.	Which of the following is not a way to measure concrete resistivity?
		Core under the structure
		Directly on the surface of the structure
		On cores drilled from the structure
		Using embedded sensors
8.	The arrow in the picture below points at:
		Reinforcing bar
		Steel bar
		Metal Connector
		None of the above
9.	The four-probe method can be used for:
		Geophysical prospecting
		Concrete
		None of the above
		Both of the above
10.	Thermographic surveys are __________ and non-invasive.
		Time consuming
		Speedy
11.	The antenna is the key component in the radar system
		Data Logger
		Control Unit
		Antenna
		None of the above
12.	The aim of dynamic testing is not to detect:
		Natural periods and stiffness
		modes of vibration
		The amplitude of the vibrations
		Static Characteristics
13.	Fibre optic sensor technology is __________ invasive
		Extremely
		Minimally
14.	The equivalent frame approach looks very simple and it can be adopted to analyze the structural behaviour both for __________ actions,
		Vertical
		Horizontal
		Both of the above
15.	Asymmetry or skewness and kurtosis or peakedness (the extent to which a frequency distribution is concentrated about the mean) are used ____________ frequently than the central tendency and dispersion measures.
		Less
		More
		Equally
16.	An existing building requires structural reassessment when:
		Its reliability is inadequate, also due to misuse or human errors
		The structure is modified and/or enlarged
		The structure has been damaged
		All of the above
17.	In the first half of the 20th century, a big improvement was achieved introducing the prestressing techniques, to ________ the load-bearing capacity of the structure.
		Decrease
		Increase
18.	Cracks to ________________ compressive principal stresses indicate crushing of concrete.
		Parallel
		Perpendicular
		Under
		Above
19.	Timber degradation is a continuous process induced both by:
		Abiotic Attacks
		Biotic Attacks
		Both of the above
20.	Assessment of existing structures is an urgent issue of a great economic significance in most countries around the world as more than ______ of all construction activities concern existing buildings.
		10%
		20%
		35%
		50%